Wilson Creek, WA Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-04
Drinking water quality in Wilson Creek has lagged behind WA benchmarks — documented violations keep the safety grade low.
How Wilson Creek Compares
Data: EPA SDWIS Last verified: 2026-06-04
Wilson Creek Water: The Quick Version
- Homes built before 1986: 88% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 12.63 — above typical levels.
Water Systems Serving Wilson Creek
Wilson Creek, WA runs on one primary water provider among the 1 federally tracked system. A single utility is responsible for the overwhelming share of residential supply — including the infrastructure, compliance filings, and rate schedules that govern service for most households.
Overview
We track water quality and home safety data for 1 ZIP code in Wilson Creek, Washington (population ~245), covering 1 community water system serving approximately 944 people region-wide.
No EPA violations recorded across any ZIP codes in Wilson Creek — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Wilson Creek: D (53/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Wilson Creek water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Wilson Creek
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 98860 | D | COULEE CITY TOWN OF | 944 |
All ZIP Codes in Wilson Creek
- 98860 [D]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Wilson Creek
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Old Is Wilson Creek's Housing Stock?
With 88% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1952 places Wilson Creek's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era — and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.
Over half of homes in Wilson Creek were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Wilson Creek: Remediation Cost in Perspective
In Wilson Creek, documented water and safety issues can be addressed without making a meaningful dent in home equity — the financial proportionality here is favorable, and the commitment fits within standard property planning frameworks.
Remediation costs in Wilson Creek are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 61% below the Washington average.
Protecting Children from Lead in Wilson Creek
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Locally, 88% of Wilson Creek homes carry interior plumbing from the era when lead solder was still permitted in new builds, and citywide monitoring approaches or crosses the EPA action benchmark. Households can find a draw-test kit and certified filtration through verified retailers.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Wilson Creek
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 88% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Wilson Creek, WA